Spotlight



Jan. 18, 1927. ,61 ,904

J. E. TOMLINSON SPOTLIGHT Filed Nov. 10. 1925 Patented Jan. 18, 1927.

UNITED stares 1,614,904 Para NT. mama,

rmasnnwann'romnmson, or mnmnaroms, nmmnn.

ap'pimtion inla November 10, 1925. .rseriai 1N0. c m.

This invention relates to improvements in spot lights and has for its principal object to provide a spot light which is of such construction as to produce a relatively wide 6 beam of lighton the road directly in front of the motor vehicle.

Another important object'of the invention is to provide a spot light which is'of such construction as to prevent the glare incident to the usual headlights of a motor vehicle blindingthe driver of an approaching vehicle, the use of my improved spotlight 'obviating the necessity of having to employ bright headlights.

A further object is to provide a spot light which-is simple in construction, inexpensive, strong and durable and further well adapted to-the purposefor which-it is designed.

Other objects and advantages of the invention will become apparent during the course of the following description taken in connection with the accompanying drawing.

In the accompanying drawing forming a part of this application and in which like numerals designate like parts throughout the same:

Figure 1 is a vertical sectional view through a spot light embodying my invention, parts thereof being shown in elevation.

Figure 2 is a front elevation of the improved spot light.

Figure 3 is a top plan view, and

Figure 4 is a diagrammatic view showing the comparison of the beam of light as produced by an ordinary spot light, and that produced by my improved spot light.

In the drawing, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates generally my improved spot light,

the same comprising a substantially parabolic reflector 2, the open front face of which is of substantially elliptical design as clearly shown in Figure 2. The lens 3 is also of substantial elliptical shape, and the same is supported in the open front face of the reflector through the medium of the metallic rim or band 4 in the manner well known in the art. A strip of cork or other similar material is disposed between the clamping rim or ring 4, and the adjacent edges of the reflector and lens 2 and 3 respectively in the manners more clearly shown at 5 in Figure 1.

Axially, the reflector 2 is provided with the extension 6 which is of substantial rectangular design and this extension is provided with longitudinallyextending bores, such as: is :shown --at 7. A socket member 8 is slidablypdisposed in each of the bores,--a screw 9 {being threaded through the top -of each'of the bores and cooperating with the respective sockets for holding the same ;'lIl their proper longitudinally adjusted po'si tions. A pair of electric lamps-such asare show'n at -10ja're adapted to be arranged within the reflectorv 2,..and the 'bases of these lamps are detachably fitted in the forward end's'of the {respective sockets inany suitable mannerwell known in the art. The-bases of ea'ch'of the-electricv lamps is indicated at-ll in the drawing. I

V A pair .of lead plugs 12 are fittedinthe rear ends of the respective bores 30f the'extension G-and the wiring which xtends from a suitable source through the lead plugs and into the sockets provided for the respective electric lamps is indicated generally at 13. The provision of the set screws 9 enables the electric lamps to be properly focused.

The extension 6 further provides a handle for adjusting the angle at which the spot light is to be disposed.

Supporting means for the spot light comprises a two part clamp designated generally by the numeral 14 which is to be detachably secured on the windshield frame of a motor vehicle in the manner well known in the art. An arm 15 extends laterally from one part of said clamp and the outer free end of this arm terminates in a vertically disposed sleeve or bearing 16 through which extends an eye bolt 17. A lock nut 18 is threaded on the lower threaded end of the eye bolt and engages the lower end of the s eeve like mem r 16 for supporting the spot light in position against further rotation.

A pair of parallel spaced depending arms 19 are formed on the bottom of the extension 6 and the eye of the eye bolt is adapted to be disposed between the spaced dependin arms. A thumb nut and bolt designated generally by the numeral 20 extend transversely through suitable registering apertures provided therefor in the lower portions of the dependin arms 19 and through the eye of the eye bolt 17 for permitting the spot light to be adjusted in a vertical plane.

A supporting means of the above mentioned character enables the spot light to be rotated as well as be tilted, so as to enable the rays of light to be directed downwardly front elevation, and by further providing a pair of electric lamps in the spot light a wider beam of light will be produced as is clearly illustrated by the comparison shown in Figure 4 of the drawing. lVith refer- .ence to this figure it will be seen that the beam of light produced by a spot light of the usual construction is much smaller in Width than the beams of light produced by my improved spot light.

By using a spot light of the above mentioned character on a motor vehicle, it will not be necessary to employ bright headlights, and thus eliminate the usual glare produced by such lights and which has a tendency to blind the operator of an approaching vehicle. The beam of light produced by my improved spot light will be sufficient to properly illuminate the road in front of the vehicle so that the operator thereof will at all times be in a position to see the road.

While I have shown the preferred embodiment of my invention, it is to be understood that minor changes in the size, shape and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the appended claim.

Having thus described the invention, What I claim as new is A spot light comprising a parabolic reflector of substantially elliptical design in front elevation, a similar shaped lens mounted in the open front face of the reflector, an axial extension formed on the reflector, said extension being provided with a pair of spaced longitudinally extending bores, a socket member slidably disposed in each bore, a set screw threaded transversely into each bore for adjustably securing the socket member therein, a pair of electric lamps arranged within the reflector, and mounted in the forward ends of the respective sockets, lead plugs through which the wiring, for the lamps extend mounted in the rear ends of the bores, and a support for the spot li ht.

In testimony whereof I affix my signature.

7 JAMES EDWARD TOMLINSON. 

